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Classic Goldwing Technical Forums
Goldwing Customization & Tricks
C5 using a VOES switch
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<blockquote data-quote="C5Performance" data-source="post: 137504" data-attributes="member: 2938"><p>To keep from confusing everyone, I will continue using the chart we just used to explain timing. </p><p></p><p>We determined that climbing a steady grade with a loaded vehicle was increasing the EFFICIENCY of the engine. </p><p>We also know that (for example) Wes is not going to run his fully loaded Goldwing up a steep grade until the rpm has dropped to a high idle. I don't care how much you retard the timing advance there are certain limitations. </p><p></p><p>For teaching purposes I have decided that Wes can run his bike down to about 3,000 rpm before he'd downshift to a lower gear. </p><p></p><p>Then it would make sense that our timing curve (a program telling the coil when to turn off) only has to reduce timing at higher engine rpm (his operating rpm range on the highway). That is the range of engine speeds that Wes would most likely use to climb out of the river valley. </p><p></p><p>For those of you already familiar with the curves we use, you will notice that as you change from curve to curve, only the "top half" of the curve changes. Why? Because if you came to a stop, your timing curve at lower rpm would not need to be different. If a deer ran out in front of Wes, and he skidded to a stop, his engine would not be under a LOAD at idle, so his timing requirements would remain unchanged from the original timing curve (lets call it curve #1). </p><p></p><p>Did I confuse everyone yet?</p></blockquote><p></p>
[QUOTE="C5Performance, post: 137504, member: 2938"] To keep from confusing everyone, I will continue using the chart we just used to explain timing. We determined that climbing a steady grade with a loaded vehicle was increasing the EFFICIENCY of the engine. We also know that (for example) Wes is not going to run his fully loaded Goldwing up a steep grade until the rpm has dropped to a high idle. I don't care how much you retard the timing advance there are certain limitations. For teaching purposes I have decided that Wes can run his bike down to about 3,000 rpm before he'd downshift to a lower gear. Then it would make sense that our timing curve (a program telling the coil when to turn off) only has to reduce timing at higher engine rpm (his operating rpm range on the highway). That is the range of engine speeds that Wes would most likely use to climb out of the river valley. For those of you already familiar with the curves we use, you will notice that as you change from curve to curve, only the "top half" of the curve changes. Why? Because if you came to a stop, your timing curve at lower rpm would not need to be different. If a deer ran out in front of Wes, and he skidded to a stop, his engine would not be under a LOAD at idle, so his timing requirements would remain unchanged from the original timing curve (lets call it curve #1). Did I confuse everyone yet? [/QUOTE]
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Classic Goldwing Technical Forums
Goldwing Customization & Tricks
C5 using a VOES switch
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